Low-Energy Spin Dynamics of the Honeycomb Spin Liquid Beyond the Kitaev Limit

• Published in: Physical review letters Vol. 117; no. 3; p. 037209
• Main Authors: Song, Xue-Yang, You, Yi-Zhuang, Balents, Leon
• Format: Journal Article
• Language: English
• Published: United States 15.07.2016

We investigate the generic features of the low energy dynamical spin structure factor of the Kitaev honeycomb quantum spin liquid perturbed away from its exact soluble limit by generic symmetry-allowed exchange couplings. We find that the spin gap persists in the Kitaev-Heisenberg model, but general...